Begum, M.D. et al. 2016. Identification of Avian Leukosis Virus from layer chicken by serological test and embryo inoculation technique. Asian-Australasian Journal of Bioscience and Biotechnology. 1, 1 (Apr. 2016), 23–30. DOI:https://doi.org/10.3329/aajbb.v1i1.61526.